Description 1. s arc generation function: After the is turned on, the wire at the tail will generate an arc, which is beautiful. The arc can still ignite 2. lighting function in space: After the coil is powered on, it can light up fluorescent lamps in space 3. includes a music playback function: a new concept speaker in which the arc excites the and turns the into the vibration generated by the plasma It can play mobile phone/computer music, but the sound is relatively low. It is suitable for watching the magical arc and listening to music comfortably in the dead of night.4. functional parameters: voltage input 15-24V DC, current 2A, the heat dissipation is relatively when working, so the heat sink is relatively hot When in use, be careful not to touch the heat sink with your hands.: 15w input: DC 15-24v, current 2A, DC5.5 interface/pin headerAudio input: 3.5 jack, can connect mobile phone, mp3, computer audioPrinciple coil is a transformer (resonance transformer) that operates on the principle of resonance. It was invented by Serbian-American scientist Nikola in 1891. It is mainly used to produce ultra-high voltage but low current and high frequency. AC . A coil consists of two (sometimes three) coupled resonant circuits. coils are difficult to define, and Nikola experimented with a number of various coil configurations. used these coils for innovative experiments, such as electrical lighting, fluorescence spectroscopy, X-rays, high-frequency alternating current phenomena, electrotherapy and wireless energy transmission, emitting and receiving radio electrical signals.color:As shownMaterial:ABSPackage Contents:1 x Black Mini Coil KitOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.